WO2003011465A1 - Profilage de surface d'un cylindre de broyeur a cylindres haute pression - Google Patents

Profilage de surface d'un cylindre de broyeur a cylindres haute pression Download PDF

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Publication number
WO2003011465A1
WO2003011465A1 PCT/EP2002/008027 EP0208027W WO03011465A1 WO 2003011465 A1 WO2003011465 A1 WO 2003011465A1 EP 0208027 W EP0208027 W EP 0208027W WO 03011465 A1 WO03011465 A1 WO 03011465A1
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WO
WIPO (PCT)
Prior art keywords
roller
profile
wear
roll
width
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2002/008027
Other languages
German (de)
English (en)
Inventor
Norbert Patzelt
Johannes Knecht
René Klymowsky
Reinhold Gebbe
Egbert Burchardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Polysius AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polysius AG filed Critical Polysius AG
Publication of WO2003011465A1 publication Critical patent/WO2003011465A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers
    • B02C4/305—Wear resistant rollers

Definitions

  • the invention relates to a roller for a high-pressure material bed roller mill, with a surface profile, which consists of a plurality of arranged on the roller surface at a distance from one another and over the entire roller width, outwardly projecting, wear-resistant profile bodies.
  • High-pressure material bed roller mills are known for the material bed comminution of granular material, the rollers of which have a surface profile which consists of a large number of wear-resistant profile bodies. Pockets form between adjacent profile bodies and are filled with compressed fine-grained material during operation of the material bed roller mill, which acts as roller wear protection (EP-B2 0 443 195).
  • Nubs are generally hard metal pins that are welded or inserted onto the roller base made of tempered steel. In recent times, the knobs have been made up entirely of weld metal wear, whereby a material with a higher yield point is usually selected for the roller body (ZKG International No. 7/1997, p.384-392).
  • DE-A-196 18 143 describes the possibility of protecting the roller body with pin-shaped profile bodies. Since the axial edge regions are exposed to less wear, it is proposed to attach the pin-shaped profile bodies only in the central main part of the roll surface that is exposed to high wear.
  • DE-A-39 04 678 relates to the problem that a trough-shaped or trough-shaped wear profile forms during operation of the roller presses. It is therefore proposed to provide wear-resistant roller armor by means of welded armor or a cast or rolled one-part or multi-part wear-resistant roller jacket, the surface being designed so that the lateral portions of the wear-resistant roller surface located in the region of the roller ends wear out more quickly, and this higher Wear counteracts the formation of the lateral beads on the roller surface.
  • the service life of rollers with wear-resistant profile bodies is often inadequate and causes time-consuming and costly machine downtimes.
  • the invention is therefore based on the object of designing a roller with a surface profiling from wear-resistant profile bodies in such a way that a particularly long service life results.
  • the wear resistance of the surface profiling is adapted to the operational wear stress per surface unit, which varies over the roll width, in such a way that, in the ideal case, an approximately uniform wear profile results over the entire roll width.
  • profile bodies of higher hardness than in the other surface zones can be provided in surface zones of increased operational wear, in particular in the central region of the roller width.
  • Fig.l shows a schematic plan view of the rollers 1 and 2 of a known high-pressure material bed roller mill. They have a surface profile which consists of a multiplicity of wear-resistant profile bodies 3 which are attached to the roller surface at a distance from one another and protrude outwards. These profile bodies 3 are all of the same design in the usual way and are evenly distributed over the roll surface.
  • the wear profile (profile line 5) is therefore very non-uniform over the roller width B and, even after a relatively short operating time, requires a time-consuming and cost-intensive leveling of the roller surface by partial removal of the profile bodies 3 'in the edge regions.
  • FIG. 3 illustrates an exemplary embodiment of the solution according to the invention.
  • the density of the profile bodies provided per unit area on the roll surface is expediently continuously reduced from the area of the highest pressure stress to the edges.
  • FIG. 1 shows a schematic cross section of an exemplary embodiment in which simple pin-shaped profile bodies 3a are provided in the outer, comparatively less stressed zone 7, while in the highly stressed zone 6, composite profile bodies 3b are attached in the central region of the roller width. They consist, for example, of a base body 3b-L and a particularly high-quality wear head 3b 2 .
  • the wear profile can thus be largely uniform over the entire roll width and the durability of the surface profiling can be significantly improved.
  • the roller shell on the surface of which the profile bodies are provided, can consist in the usual manner of one or more self-contained bandage rings or of individual segments releasably braced with the roller base body.
  • the profile bodies are designed in the form of pins or nubs and are expediently applied to the roller surface by build-up welding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

L'invention concerne un cylindre de broyeur à cylindres haute pression. La résistance à l'usure du profilage de surface constitué de corps profilés saillants est adaptée à la sollicitation à l'usure par unité de surface, sollicitation différenciée sur la largeur du rouleau, de telle manière que l'on obtienne un profil d'usure sensiblement uniforme sur la largeur de rouleau.
PCT/EP2002/008027 2001-07-30 2002-07-18 Profilage de surface d'un cylindre de broyeur a cylindres haute pression Ceased WO2003011465A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001137131 DE10137131A1 (de) 2001-07-30 2001-07-30 Oberflächenporfilierung für die Walze einer Hochdruck-Gutbettwalzenmühle
DE10137131.4 2001-07-30

Publications (1)

Publication Number Publication Date
WO2003011465A1 true WO2003011465A1 (fr) 2003-02-13

Family

ID=7693619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/008027 Ceased WO2003011465A1 (fr) 2001-07-30 2002-07-18 Profilage de surface d'un cylindre de broyeur a cylindres haute pression

Country Status (2)

Country Link
DE (1) DE10137131A1 (fr)
WO (1) WO2003011465A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470371A (zh) * 2009-08-17 2012-05-23 Khd洪保德韦达克有限公司 具有环形销栓的滚压机网格状护甲
WO2016101952A1 (fr) * 2014-12-22 2016-06-30 Flsmidth A/S Cylindre résistant à l'usure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011102386C5 (de) 2011-05-25 2015-03-19 Thyssenkrupp Industrial Solutions Ag Mahlwalze sowie eine Hochdruck-Walzenmühle
CN102350391B (zh) * 2011-09-07 2014-04-16 成都利君实业股份有限公司 硬质合金柱钉辊面
DE102018111621B4 (de) * 2018-05-15 2020-01-23 Helmut Prihoda Verfahren zur Verbesserung der Produktivität von Mahlanlagen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269477A (en) * 1991-05-28 1993-12-14 Kloeckner-Humboldt-Deutz Ag Wear-resistant grinding drum for employment in roller machines, particularly in high-pressure roll presses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904678A1 (de) * 1989-02-16 1990-08-23 Kloeckner Humboldt Deutz Ag Walzen fuer walzenmaschinen, insbesondere fuer hochdruck-walzenpressen
DE4431563A1 (de) * 1994-09-05 1996-03-07 Kloeckner Humboldt Deutz Ag Verschleißfeste Oberflächenpanzerung für die Walzen von Hochdruck-Walzenpressen zur Druckzerkleinerung körnigen Gutes (Unterlagen zu P 44 44 337.4 gegeben)
DE19618143A1 (de) * 1996-05-06 1997-11-13 Krupp Polysius Ag Mahlwalze sowie Betriebs- und Reparaturverfahren

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5269477A (en) * 1991-05-28 1993-12-14 Kloeckner-Humboldt-Deutz Ag Wear-resistant grinding drum for employment in roller machines, particularly in high-pressure roll presses

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GUDAT G ET AL: "BETRIEBSERFAHRUNGEN MIT DEM VERSCHLEISS-SCHUTZ BEI HOCHDRUCK-ROLLENMUEHLEN", ZKG INTERNATIONAL, BAUVERLAG GMBH. WIESBADEN, DE, VOL. 50, NR. 7, PAGE(S) 384-392, ISSN: 0949-0205, XP000727722 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102470371A (zh) * 2009-08-17 2012-05-23 Khd洪保德韦达克有限公司 具有环形销栓的滚压机网格状护甲
CN102470371B (zh) * 2009-08-17 2015-12-16 Khd洪保德韦达克有限公司 具有环形销栓的滚压机网格状护甲
WO2016101952A1 (fr) * 2014-12-22 2016-06-30 Flsmidth A/S Cylindre résistant à l'usure
CN107107065A (zh) * 2014-12-22 2017-08-29 Fl史密斯公司 耐磨辊

Also Published As

Publication number Publication date
DE10137131A1 (de) 2003-02-13

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